#DD1F1A
Closest named color: Crimson (#DC143C). oklch(57.4% 0.221 28.6), rgb(221, 31, 26).
Aa
White text reads best on this color (4.90:1).
About this color
#DD1F1A is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.221 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.033 away. White text reads best on it, at 4.90:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #DD1F1A |
| RGB | rgb(221, 31, 26) |
| HSL | hsl(2, 79%, 48%) |
| OKLCH | oklch(57.4% 0.221 28.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #DD1F1A | 4.90:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #DD1F1A | 4.28:1 | AA large text | Lc 32.3 | Non-text elements, placeholder text |
| #DD1F1A text on white | 4.90:1 | AA | Lc 71.8 | Content text, not long reading |
| #DD1F1A text on black | 4.28:1 | AA large text | Lc -29.9 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FAA89C
oklch(80.8% 0.099 28.6)
-
Step 400
400
#F37565
oklch(70.7% 0.158 29)
-
Step 500
500
#EB463A
oklch(63.1% 0.204 28.5)
-
Step 600
600 (this color)
#DD1F1A
oklch(57.4% 0.221 28.6)
-
Step 700
700
#B80005
oklch(49.2% 0.201 28.7)
-
Step 800
800
#960908
oklch(42.7% 0.17 28.7)
-
Step 900
900
#791812
oklch(37.8% 0.133 28.7)
-
Step 950
950
#47110C
oklch(27% 0.083 29)
#DD1F1A with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #625715 | 0.241 |
| Deuteranopia (no green cones) | #8F7F07 | 0.217 |
| Tritanopia (no blue cones) | #F40022 | 0.045 |
| Achromatopsia (no color) | #717171 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DD1F1A
#DD1F1A
oklch(57.4% 0.221 28.6)
- #008898
#008898
oklch(57.4% 0.099 209.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #DD1F1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.033
- Tomato Red #EC2D01 ΔE 0.038
- Cherry #CF0234 ΔE 0.046
- Red Pantone #EF233C ΔE 0.046
- Imperial Red #E63946 ΔE 0.047
- Cherry Red #F7022A ΔE 0.052
- Vermillion #F4320C ΔE 0.055
- Faded Red #D3494E ΔE 0.057
Use #DD1F1A in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.